httpjson: remove leftover single quote (elastic#4727)

Author: efd6

packages/httpjson/changelog.yml

@@ -1,3 +1,8 @@
+- version: "1.6.1"
+  changes:
+    - description: Minor doc fix.
+      type: bugfix
+      link: https://github.com/elastic/integrations/pull/4727
 - version: "1.6.0"
   changes:
     - description: Update package to ECS 8.5.0.

packages/httpjson/manifest.yml

@@ -1,9 +1,9 @@
 format_version: 1.0.0
 name: httpjson
 title: Custom API
-description: Collect custom events from an API endpoint with Elastic agent'
+description: Collect custom events from an API endpoint with Elastic agent
 type: integration
-version: "1.6.0"
+version: "1.6.1"
 release: ga
 conditions:
   kibana.version: "^8.4.0"